Folding long lines in Ansible inventory files

If you have an Ansible inventory file that includes lots of per host
variables, it’s not unusual for lines to get long enough that they
become unwieldly, particularly if you want to discuss them in an email
or write about them in some context (e.g., a blog post).

I’ve just submitted pull request #14359 to Ansible which
implements support for folding long lines using the INI-format
convention of using indent to mark extended logical lines.